AC_DEFINE(KIT_INCLUDES_MK4TCL, [1], [Specify this if you link against mkt4tcl])
				DC_DO_STATIC_LINK_LIBCXX
			fi
			if test "${proj}" = "tk"; then
				DC_DO_TK
				AC_DEFINE(KIT_INCLUDES_TK, [1], [Specify this if we link statically to Tk])

				if test "$host_os" = "mingw32msvc" -o "$host_os" = "mingw32"; then
					AC_DEFINE(KITSH_NEED_WINMAIN, [1], [Define if you need WinMain (Windows)])
					CFLAGS="${CFLAGS} -mwindows"
				fi
			fi
		fi
	done

	AC_SUBST(ARCHS)
])

AC_DEFUN(DC_SETUP_TCL_PLAT_DEFS, [
	AC_CANONICAL_HOST
  
	AC_MSG_CHECKING(host operating system)
	AC_MSG_RESULT($host_os)
  
	case $host_os in
		mingw32*)
			CFLAGS="${CFLAGS} -mno-cygwin -mms-bitfields"

			dnl If we are building for Win32, we need to define "BUILD_tcl" so that
			dnl TCL_STORAGE_CLASS gets defined as DLLEXPORT, to make static linking
			dnl work
			AC_DEFINE(BUILD_tcl, [1], [Define if you need to pretend to be building Tcl (Windows)])
			AC_DEFINE(BUILD_tk, [1], [Define if you need to pretend to be building Tk (Windows)])